Gapped

A train stalled over a gap in the conductor rail of an electric railway is said
to be [[gapped]]. "gapped". This occurs when the shoes on the train
which collect the current have all lost contact with the current rail due to
gaps left for junctions. Particularly prevalent at complex junctions such as the
entrances to yards. See also conductor rail. A driver who has "gapped"
his train will always be the subject of ridicule from his peers. Knowing where
the gaps are is part of road learning.